Automatic liquid lifter



April 27, 1943. A. B. COLLINSON 2,317,589 AUTOMATIC LIQUID LIFTER Filed July 26, 1941 f' .LL A

X 29 19 18 z Z5 )II -l/ z0 E f? :5 5 IE3: ,lZzt'i fi 60262736 5 v Patented Apr. 27, 1943 UNITED STATES PATENT OFFICE aUTOMATIC LIQUID LIFTER Alick B. Collinson, Glasgow, Mont.

Application July 26, 1941, Serial No. 404,254

3 Claims.

This invention relates to an automatic water lifter particularly for transfer of a liquid from one receptacle to another, and it consists in the constructions, arrangements and combinations herein described and claimed.

It is a particular object of the invention to provide an automatic liquid lifter employing suction means for elevating the liquid as well as stopping the flow of liquid into a tank or receptacle to be filled, when the liquid reaches a predetermined level.

It is a still further object of the invention to provide a water lifting unit of a portable nature readily installed upon a receptacle to be filled, which is cheap to manufacture and highly efficient in operation, and in which but two'moving parts are involved.

Additional objects, advantages. and features of invention will be apparent from the following description and accompanying drawing, wherein:

Figure 1 illustrates my liquid litter in use,

Figure 2 is a top plan view of the unit,

Figure 3 is an enlarged vertical section of the unit, installed upon a receptacle to be filled.

Attention is first invited to Figure 1 of the drawing, wherein a container it] represents a source of liquid from which liquid is to be elevated to the receptacle I! by the pump or elevator l2 suitably mounted upon the open mouth of the receptacle ll. A conduit it has one end disposed in the liquid of the receptacle it} while the other end is connected to the inlet M of the elevator unit. The elevator unit also has a nipple whereby connection with a suitable source of suction may be made, by means of a conduit l6.

As clearly shown in Figure 3, the elevator unit consists of a casting integrally formed with the inlet l4 and nipple I5 and of annular form, although this construction is not arbitrary. The casting has a planiform face l8 adapted to seat upon a Washer IS, the latter in turn forming snug contacting engagement with surfaces defining the mouth of the receptacle H. The weight of the casting is such that no other fastenings are required for securing the unit to the receptacle to be filled.

A pipe 20 is integrally formed upon the underside of the face 18, to one side of the medial portion of the casting, and is in communication with the inlet I l and the receptacle.

A vertical bore 2| is formed in the casting. having a. conical seat 22 for a valve 23 reciprocably mounted therein, the bore 2! being closed at itsupper end by a threaded plug 2| as shown.

The port 24 of the nipple 15 forms communication between the suction line l6 and the bore 2 l.

At the lower end of the pipe 20 a well 25 is provided, in vertical alignment with the bore 2|, and houses a float 26, the latter being raised or lowered by the changing level of liquid in the receptacle H, and to this end an opening 25 is formed in the base of the well.

The valve 23 in the present instance, is shown as having a tube 21, the lower end of which is formed as an enlarged bell 23, of a diameter slightly less than the diameter of the float, so that when the float is raised, it will seat snugly against the bell, which would be the relation of these parts when. the receptacle is filled. The overall length of the valve is such that the bell 28 is spaced from the normal position of the float. The upper end of the tube is also provided with a bell 29 similar to the bell 28, but of greater length, the conical base of which 00- operates with the seat 22 for retention of the valve within the bore. The bell 29 is slidable through the bore 2!, and controls the suction through the port 24. In other words, when the receptacle is filled, the valve 23 and the bell 29 will be raised so as to close communication between the bore 2| and port 24.

A spring-actuated vent valve 38 is provided in the casting, the spring normally holding the valve seated. This valve 30 is to be manually actuated to relieve suction in the receptacle, as may be required.

In use, with the device installed as shown in Figure 1, when suction is created in pipe 16, the receptacle H and the pipe I3, liquid will be drawn upwardly through the pipe I3 and discharged into the receptacle H by way of the pipe 20. When the level of liquid reaches the float 26, the latter is raised, and this action continues until the lower edge of the bell 28 is almost contacted by the float, as shown in dotted lines in Figure 3. Full suction is still inherent in the bore 2|, port 24 and through the opening of the tube 21, and by reason of this, the float 26 will be quickly drawn into engagement with the bell 28 and the valve 23 rapidly raised to close the port 24, when the pump ceases to function. The line 56 may include any suitable form of valve (not shown) for stopping suction through the line, and obviously when this is done, the float and valve will return to normal position.

While I have shown and described my corstruction quite specifically, this is by way of illustration only and I consider as my own, all such modifications in structure as fairly fall within the scope of the appended claims.

I claim:

1. A suction pump comprising a body member having a planiform base for seating engagement with the mouth of a receptacle to be filled, said body further having a depending pipe and an inlet connection in communication therewith, a

well carried by the depending pipe, said body member having a bore in vertical alignment with the Well, a suction nipple on the body member having a port opening upon the bore, a valve slidable in the bore below the port and having a vertical passage therethrough, said valve being of a length so as to close the port at times, and a float seated within the well and movable by the rising level of liquid in the receptacle to restrict the lower open end of the passage through the valve whereby to impart a quick upward movement of the valve for closing the port.

2. A suction pump comprising a body member having a planiform base for seating engagement with the mouth of a receptacle to be filled, said body having an inlet opening upon the interior of the receptacle, the body member further having a bore, a suction nipple on the body member having a port opening upon the bore, a valve slidably mounted in the bore, the valve having an opening therethrough and normally having communication with the receptacle, a float within the receptacle movable by the rising liquid level in the receptacle to restrict the open end of the valve whereby to impart a quick upward movement of the valve for closing said port.

3. The structure of claim 1, in which the valve is provided with a bell-like formation at its ends and said bore is of reduced diameter at its lower end for retention of the valve within the bore.

A. B, COLLINSON. 

